canjs/canjs

We CAN build the impossible! https://codepen.io/justinbmeyer/pen/yEGGoK

Frank Lemanschik

@frank-dspeed

i would say

1 reqest per save is total ok

if you need to save more data then simply do a custom batch via a endpoint that supports that

Matthew Phillips

@matthewp

@kaderiho yep, that is correct

Frank Lemanschik

@frank-dspeed

but out of my view you should save the item on creation

there is no case where you save more then 1 item at time and if you batch edit items via your interface directly

you end up in 1 request per processed item

thats total ok

else simply send item ids and changes to the backend and process them there

a batch endpoint would be a simple endpoint that accepts json lists

then you do getList and post that json to that endpoint

your done

the endpoint then takes that json list and does the for each serverside

Matthew Phillips

@matthewp

https://forums.donejs.com/t/bulk-actions-destroy-update-on-multiple-items/575

I think that's the forum post @justinbmeyer is talking about

the linked to jsbin shows an example that does bulk deletes

Frank Lemanschik

@frank-dspeed

ya the question now is do you want to do bulk on the interface aka from the client side

or from the backend aka batch bulk enabled api endpoint

Justin Meyer

@justinbmeyer

@jeroencornelissen I think I shared some code too

Frank Lemanschik

@frank-dspeed

https://jsbin.com/noguwup/9/edit?html,js,output

this is your code

it adds a destroyList method

that sends the json to a endpoint that does the foreach

Justin Meyer

@justinbmeyer

that's my code?

Frank Lemanschik

@frank-dspeed

yes

Justin Meyer

@justinbmeyer

I generally don't write code like that

Matthew Phillips

@matthewp

it's from that forum post, not sure if you wrote it or @jeroencornelissen did

Frank Lemanschik

@frank-dspeed

@justinbmeyer suggested this on the gitter channel:

I would put a destroyList or some method on your list that makes the requests
and then call destroyedInstance on each one (assuming can-connect)

I have tried that but couldn’t make it work. The items are updated when calling Item.Connection.destroyedInstance(item, {title: 'destroyed'});. The title changes to destroyed, but I expected them to get removed from the list.

See this fiddle 3:

ah ok

it was gregromhild

sorry

readed it wrong i tought he copyed your text

Justin Meyer

@justinbmeyer

I remember giving code IN gitter, I wish there was a link to the gitter thread

Frank Lemanschik

@frank-dspeed

if you got gitter pro

you should be able to find it

do you got a pro account?

it has infinity history and search

as far as i remember

Justin Meyer

@justinbmeyer

basically, the .save() on a list would need to update the instances correctly

there's a way to do that

Frank Lemanschik

@frank-dspeed

dispatch

Justin Meyer

@justinbmeyer

it's not dispatch

(though a dispatch happens)

I'd look it up but in the middle of something

Frank Lemanschik

@frank-dspeed

i saw in some examples that there was custom dispatch on stuff like

can-define backup

thats why i got that idea

Justin Meyer

@justinbmeyer

essentially you would need to re-create what the normal .save() does on every item in the list

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